Chloride
Chloride is an essential electrolyte, the negatively charged form of chlorine. Most of it comes from table salt (sodium chloride).
What it is studied for
The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.
Why does the body need chloride?
Chloride helps regulate water, electrolytes and acid-base balance. It also forms part of stomach acid. 1
Is dietary deficiency common?
DGE describes deficiency as rare. Losses can occur with vomiting, kidney disease or diuretic medicines. 1
Why people take it
SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.
Questions people ask
Is chloride involved in hydration?
Yes. It helps regulate water and electrolyte balance. That biological role alone is not evidence that everyone needs an extra supplement. 1
Does a low blood value prove my diet lacks chloride?
A single result cannot establish a diagnosis; the other laboratory findings and symptoms must be considered. 2
Is 3,100 mg a maximum safe dose?
No. EFSA calls it a safe and adequate total daily intake, derived from sodium reference values, not an upper limit. 3
Does this profile assess muscle recovery supplements?
No. It covers chloride’s normal role, dietary reference values and blood-test context.
Related nutrients
SodiumSources
- Chlorid Deutsche Gesellschaft für Ernährung
- Chlorid IQWiG, Gesundheitsinformation.de
- Dietary reference values for chloride EFSA Journal, 2019
